A strange package containing what may be someone's bucket list shows up in a prop mailbox on a commercial set. The postal detectives attempts to track down its intended recipient.

The postal detectives are put to the test when they seem to be unable to deliver a damaged letter from a military veteran that's a matter of life and death. Oliver and his father Joe embark on a father-son bonding adventure that ends up putting both their lives at risk.—Hallmark Channel